The speed you get feedback is the key imo. When I use a language that has a repl I usually find myself using it more than the text editor / ide. And in my exper

The speed you get feedback is the key imo. When I use a language that has a repl I usually find myself using it more than the text editor / ide. And in my experience there's a nice side effect too: since you cannot write too much in the repl, you end up writing smaller functions that leads to more modular, reusable code.